Description

In the 1960's, AS experimented to find out if a winding mechanism, winding in both directions is better, than a winding mechanism, winding only in one direction. For this, in that movement, the winding mechanism was an exchangeable module, located between "6" and "7".

In the movement shown here, a caliber 1749, which extended the base caliber AS 1748 by a date mechanism, the winding module for only one direction was built in and so the movement winds only counterclockwise

Technical data

Manufacturer	AS
Caliber	1748/49
Number of jewels	25
Escapement	Anchor with pallets
Balance	Nickel
Shock protection(s)	Incabloc
Balance cock direction	clockwise
Hairspring stud	moveable
Regulator type	Hairspring key
Features	SCD,QG,AUT
Functions	Hour, minute, second, day, self-winding
Beats per hour	18000
Size	111/2'''
Image in Flume Werksucher	K3 184